Hub Attack
互联网能承受 80% 节点随机失效，却撑不住 5% 的精准攻击。这种不对称是宿命吗？
Case 1 · Albert–Barabási 2000
Random Failure vs Targeted Attack
The same network. Two strategies. A factor-of-16 difference in robustness.
Case 2 · Phase 5 Loop Closed
1177 BCE: The Bronze Age Collapse as Hub Attack
Replay the 4-step cascade that ended 9 civilizations. Then read the math.
Case 3 · Phase 8 Bridge
Scale-Free Immunity Paradox
Pick your vaccination strategy. Discover why 5% can beat 30%.